Another week, another scandal involving Mayor Vince Gray’s 2010 campaign. The Post reports today that Gray’s campaign used a city database of 6,000 public housing residents as part of its get-out-the-vote effort, possibly violating local and federal laws related to the use of government resources for political purposes:

The database, part of a cache of documents The Washington Post obtained from former campaign workers, includes residents’ names, addresses and telephone numbers. One of the documents designated “team captains” responsible for reaching out to tenants in specific housing complexes.

It is unclear who assembled the list or how the campaign got it, but two campaign workers, who spoke on the condition of anonymity because of an ongoing federal investigation, said it was used in the final week before the Democratic primary election to register residents and get voters to the polls. The workers said the tenant roster was a tool used to target people the Gray campaign thought would support him over then-Mayor Adrian M. Fenty.

Gray said he was unaware of where the list came from, and the Gray campaign aides that provided it to the Post did not know of its provenance. But in an interesting twist, Gray’s son, Carlos Gray, works with the D.C. Housing Authority, though he denied any role in obtaining the list.

According to the Post’s analysis, the list of public housing residents likely paid big dividends: turnout in precincts with housing projects was up over 2006, and the majority of the votes went to Gray. Same-day registrations, an indicator of new voters, were high in those precincts, though they were higher in parts of D.C. that went for Mayor Adrian Fenty.

Though such lists are technically public information, housing lawyers say that they would not be provided with names and other personal information for fear of invasions of privacy.